Use of native Basidiomycetes in the biotransformation of buffel grass (Cenchrus ciliaris) to improve the nutritional quality
DOI:
https://doi.org/10.33885/sf.2016.3.1153Keywords:
cellulases, laccases, Trametes spp., xylanasesAbstract
The aim of the present work was to evaluate the capability of three native basidiomycetes from the Northeast region of Mexico to produce
enzymes able to break down the main components of plant cell wall and their effect on the biotransformation of buffel grass (Cenchrus ciliaris)
in order to increase its nutritional quality. Lignocellulolytic potential was evaluated on solid media and the biotransformation of buffel
grass slabs was performed. Titers of cellulases, xylanases, and laccases were determined, as well as the fiber and protein content in the slabs.
The basidiomycete reduced neutral detergent fiber (NDF) content on treated slabs. Trametes maxima CU1 showed the greatest lignolytic capability
reducing 14.24% the lignin content of grass. Pycnoporus sanguineus CS2 and T. hirsuta CS5 reduced the content of cellulose (21.6 and
19.8% respectively), and hemicellulose (17.1 and 14.2% respectively) in comparison to the control. Treatment with fungi P. sanguineus CS2
and T. hirsuta CS5 increased in 31% the protein content of grass. These results denote that basidiomycetes increased nutrients bioavailability
of buffel grass, hence increasing its nutritional quality
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